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Old 10-31-2004, 01:24 PM
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427 build, will it work?

ok, im building a brand new 427, basicly creating my own crate for my 79 firebird, heres wut i have so far just want some input about fitting and working properly. Im aiming for about 500 to 600 horse and low RPM torque.

Block - Motown Aluminum, 9.025" deck hieght 4.125" bore (427ci) 400M" Billet Cap ( http://www.primediapowerpages.com/cg...3931&2D1030221 )

Heads - Merlin II Aluminum, CNC'd 119cc chambers, 2.300 x 1.880 valve sizes, 305cc ports, 3/8" deep intake and exhaust valve seat. Accepts both stud mounted and shaft mounted rockers.( http://www.worldcastings.com/newstuff5.shtml )

Intake Manifold - Weiand Hi-Ram intake, Rectangular port, 2500-7800 RPM power band ( http://www.holley.com/HiOctn/ProdLin...AMSM/1985.html )

Carburetor - Holley 650 CFM Four Barrel, Model 4150 (shiny) street/strip, or the race version ( http://www.holley.com/HiOctn/ProdLin...SC/0-4777S.htm )

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Old 10-31-2004, 01:29 PM
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Old 10-31-2004, 01:33 PM
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7800 rpm ,so this isnt gonna be drivin on the street?

or when your at the stop light what rpm do you want the converter grabbing at?


5000rpm pwr band nice...


what size is the race version of the carb? it does sound a bit small.people have used 650's on a 383, but you have a little more so...


oh my all the info changed...disreguard

Last edited by spinn; 11-01-2004 at 12:27 PM.
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Old 10-31-2004, 01:55 PM
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Old 10-31-2004, 02:18 PM
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I dont mean to be negative, but I hope you have not already bought all those parts. You have some really mismatched components. For starters, the block you have choosen is small block block, and the heads are for a big block. Even if they were both made for a big block, the intake, and heads are designed for high RPM use if they are on a 427, which is the opposite of what you said that you want. Last of all, and the least of your problems, is that the carb is too small for a motor of that RPM range and cubic inch.

Adam

Last edited by firestone; 10-31-2004 at 02:24 PM.
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Old 10-31-2004, 05:07 PM
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He has no idea

He just thinks he can bolt this together and drop it in... haha!!! and i oviolsy didnt teach him nothing since he continues to rant about this when he has no even, done any thing like this before. Since i have some experiacne abuilding engines and customizing stuff like that. he's no got the money or the knowledge never mind the time and effort to do this....
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Old 10-31-2004, 10:55 PM
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go to my other thread to see my new build, its ALOT better..the parts will actualy fit lol
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Old 10-31-2004, 11:16 PM
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Re: 427 build, will it work?

Quote:
Originally posted by ******_Beaver
ok, im building a brand new 427, basicly creating my own crate for my 79 firebird, heres wut i have so far just want some input about fitting and working properly. Im aiming for about 500 to 600 horse and low RPM torque.

Block - Motown Aluminum, 9.025" deck hieght 4.125" bore (427ci) 400M" Billet Cap ( http://www.primediapowerpages.com/cg...3931&2D1030221 )

Heads - Merlin II Aluminum, CNC'd 119cc chambers, 2.300 x 1.880 valve sizes, 305cc ports, 3/8" deep intake and exhaust valve seat. Accepts both stud mounted and shaft mounted rockers.( http://www.worldcastings.com/newstuff5.shtml )

Intake Manifold - Weiand Hi-Ram intake, Rectangular port, 2500-7800 RPM power band ( http://www.holley.com/HiOctn/ProdLin...AMSM/1985.html )

Carburetor - Holley 650 CFM Four Barrel, Model 4150 (shiny) street/strip, or the race version ( http://www.holley.com/HiOctn/ProdLin...SC/0-4777S.htm )

ha ha ah, bigblock heads on a smallblcok motor.

Do you realize you need slugs, and a crank for this?

Nice 20,000 dollar motor, maybe you can ask your parents for christmas.

Jegs dreamers, gotta love 'em... or not.

K
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Old 11-01-2004, 12:26 AM
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lmao

silly boy....
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Old 11-01-2004, 01:07 AM
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actualy the parts on my NEW THREAD WITH THE RIGHT HEADS will only set me back about 6,000 not 20,000....maybe by the time i get the whole engine, tranny and rear end done ill be around or just over 20 but w/e. and i had to go to work so i didnt get around to pistons crank and cam, doin that tomorow
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Old 11-01-2004, 12:11 PM
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You both need to spend more time in your highschool english classes before you even attempt building a motor.
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